Self monitoring and self repairing ECC

摘要

Exemplary embodiments of the present invention disclose a method and system for monitoring a first Error Correcting Code (ECC) device for failure and replacing the first ECC device with a second ECC device if the first ECC device begins to fail or fails. In a step, an exemplary embodiment performs a loopback test on an ECC device if a specified number of correctable errors is exceeded or if an uncorrectable error occurs. In another step, an exemplary embodiment replaces an ECC device that fails the loopback test with an ECC device that passes a loopback test.

主权项

1. A system for monitoring a first Error Correcting Code (ECC) module for failure and replacing a first ECC module with a second ECC module if the first ECC module fails, the system comprising:
logic to count both correctable errors and an uncorrectable error detected by a first ECC module and by a second ECC module in data that is read from a memory; logic to perform a first loopback test that replaces an input to the first ECC module with an output from the first ECC module; and logic to perform a second loopback test that replaces an input to the second ECC module with an output from the second ECC module.